Manual for Furling Mast TYPE RB Mk 4

595-065-E 2020-03-23

Manual for Furling mast TYPE RB Mk 4

Contents: Page: Contents: Page:

Product description 2 Fitting and hoisting the sail 8 Checks and adjustments before Stepping 4 Before sailing 9 Line routing 6 Maintenance 10 Operation 7 2 Product description

• Seldén furling mast allow for convenient setting and reefing of the mainsail.

• The unique design of the halyard swivel bearing distributes the load over the whole ball race to give smoother furling and the lowest possible friction, even under high loads.

• The new Mk 4 compact gear mechanism offers improved gear efficiency, allows a smaller mast cutout and is prepared for easy retro fit of electric furling drive unit.

• This Instruction Manual has been compiled to give you information on the furling mast reefing system. Study it and follow the instructions carefully, and we guarantee you pleasurable use from your Seldén furling mast.

Follow the relevant rigging instructions in our booklet ”HINTS AND ADVICE” for tuning the rig.

Fig. 2:1 Sail compartment with luff extrusion 3

Top swivel

Halyard swivel

Access to sail feeder and Sail feeder halyard swivel

Tensioning screw

Tack hook

Access to tack hook and tensioning screw

Outhaul car

Rachet lever Winch handle socket

Line driver

Fig 3:1 4 Checking luff extrusion tension prior to stepping the mast The luff extrusion is correctly tensioned before leaving the factory, but tension can be re-checked before stepping the mast in the following manner. Lay the mast horizontally on the side and keep it straight. The luff extrusion should now be just clear off the mast wall at its midpoint. If adjustment is necessary see points 1-5 below. If adjustment has to be made after the mast has been stepped, then the luff extrusion should be so tensioned that it does not beat against the mast wall when you grasp it through the upper access hole and shake it. The luff extrusion can be tensioned also with the sail fitted if the winds are very light; Roll out the sail, lower it slightly and remove the tack from the tack hook. Hoist the sail so it does not interfere with tension screw. Part of the extrusion will be resting on the aft face of the sail compartment when sailing. DO NOT OVER-TENSION! A luff extrusion that is over-tensioned will require increased furling effort.

Luff extrusion adjustment

1. Remove the access covers.

Fig. 4:1 Fig. 4:2

Depress one button and push. Lift the opposite end and remove. 5

2. Release locking ring

! 

Release the locking screw ! 3 turns and lift the locking ring ". Locking ring can be temporarily secured by a piece of tape.

3. Adjust luff tension

4 drops of oil

Lubricate the tension screw with rigging screw oil (art. nr 312-502). Put a screwdriver in the sail groove of the luff profile to prevent it from rotating. A piece of tape on the tip of the screwdriver prevents damage to the luff profile. Turn the reefing winch using the winch handle until the luff profile is correctly tensioned.

3. Engage locking ring in position and tighten locking screw

5. Refit access covers. 6 Line routing Furling and unfurling is accomplished with an endless reefing line and an outhaul operated either from the cockpit or at the mast. In the latter case the outhaul is also taken to the boom or mast near the gooseneck. (See Fig. 7.1).

Endless reefing line If the furling mast is to be operated from the cockpit an endless reefing line (loop) in combination with a self- tailing winch is recommended. Reefing line should be ø10 mm polyester rope. The endless loop must have extra length to allow it to be easily removed from the winch. The tail-end of the loop must also be belayed on a stopper. On most installations, the reefing line needs to be fed through blocks and stoppers before making an endless splice according to Seldén instruction 595-673. If the blocks and stoppers are possible to dismantle, a spliced endless line can be used according to the spare part list page 15.

Outhaul line A self-tailing winch and a stopper is also recommended for the outhaul line. Layout 1

Figs. 6: suggested arrangement.

Lead Blocks

Turning Blocks Endless Reefing Line

Rope-Stoppers

Kicking Strap

Topping Lift

Lead Blocks Outhaul Fig 6:2

Ratchet Free 

Fig. 7:1 Fig. 7:2

Alternative clew outhaul arrangement. 7 Operation Furling and unfurling is accomplished either from the cockpit with an endless reefing line and an outhaul line or at the mast using a winch handle at the mast linedriver. In the latter case the outhaul is taken to the boom or mast near the gooseneck. (See Fig. 7.1). Unfurling When unfurling from the cockpit the linedriver must be set to ”free”. (See Fig. 7:2). 1. Free both sides of the endless loop from the winch and stopper. It will then slide on the linedriver. 2. Pull out the sail with the outhaul line.

Furling 1. The leech should be kept fairly tight when reefing or furling. Adjust the boom angle (vang or topping lift) to achieve this, and the sail will form a tight roll around the luff extrusion. 2. Locate the starboard part of the endless furling line on the winch and pull by hand, or if necessary use a winch handle. 3. Keep slight tension on the outhaul while doing this. This applies especially when the wind is abaft the beam or in light air.

Reefing 1. Carefully slacken off the outhaul line. 2. Locate the starboard part of the endless furling line on the winch and pull by hand, or if necessary use a winch. 3. The leech should be kept fairly tight. Keep slight tension on the outhaul during the maneuver.

When operating at the mast: Activate the lock on the linedrive (-IN’) before reefing the sail. Use a winch handle to furl the sail. When the desired amount of sail is rolled in, use the outhaul to tension the foot of the sail. Don´t leave the winch handle in the linedriver!

When operating from the cockpit: When reefed to desired sail area, lock both parts of the endless lines in stoppers and tighten to lock the reefing winch. Finally, tension the outhaul.

When leaving the boat. Always lock the linedriver with the ratchet lever when leaving the boat!

WARNING! Never leave the winch handle in the linedriver! It will rotate very rapidly when the sail is unfurled. 8

Fitting and hoisting sail Check that the tack and head of the sail are made in accordance with Seldén instruction 595-542 “ Sailmakers guide”. An incorrect design can cause wrinkles in the sail and make smooth furling difficult.

1. Remove the covers. Press one button and push. Lift the opposite end and remove. Press one button and push. Lift the opposite end and remove.

Remove the covers.

Fig. 8:1 Fig. 8:2

Depress one button and push. Lift the opposite end and remove.

2. Attach the head of the sail to the halyard swivel.

Fig. 8:3 Fig. 8:4

Fig. 8:5 9

4. Attach the clew to the Outhaul Car.

5. Hoist the mainsail whilst simultaneously ensuring that it is feeding correctly into the luff extrusion.

6. Join the sail to the tack hook. (See fig. 8:3).

7. Tighten the halyard.

8. Furl the sail until only 200-300 mm of the clew is exposed. The linedriver should be turned clockwise. (See Fig. 9:1).

Port Starboard

Fig. 9:1

Note. For correct furling, pull on starboard part of the endless furling line for the line driver to turn clockwise.

Before sailing

1. Check that the sail is correctly furled on the STARBOARD SIDE of the luff extrusion. (See Fig. 9:1). 2. Furl and unfurl the sail a couple of times to ensure that the system works as it should, and to familiarize yourself with its operation, and also to check that the sail is correct size. 3. The area aft of the mast must be free from halyards etc. or these can be caught by the sail during the furling procedure.

Sail dimensions For up to date sail design information, please see the sailmakers guide, 595-542-E. 10

Maintenance of the in-mast furling mast

Periodic Maintenance Maintenance should be undertaken at least once a year. All bearings should be greased with GREASE (Part No. 312- 501), a tube of which is delivered with the mast. Read the following instructions and see Fig. 13: l. When greasing bearings and gears, do not over-grease. A thin coating of evenly applied grease is sufficient.

Top swivel: The bearing has a lubrication hole  marked ”GREASE” where the grease should be injected. Access through the sail slot.

Halyard swivel:: Lubricate the swivel by injecting grease into the gaps  &  in the ring. This is best done through the upper access hole.

Furling mast gear.

1. Remove the access covers and un-tension the luff - see pages 4 & 5. 2. Remove ratchet cover assembly . 3. Grease the bevel gears  and ball-bearing .

Complete Service It is a good idea after some years use to dismantle the gear for thorough cleaning and re-greasing. The in-mast furling mast is built so that servicing will be easy even after protracted use. Stainless steel thread inserts for all screw fastenings ensure that corrosion is eliminated.

Removal of the furling mast gear from the mast 1. Lay the mast horizontally on trestles. 2. Relieve tension on the luff extrusion by slackening the tensioning screw. (The tensioning screw is described on page 5). 3. Remove the upper plastic plug (4) Detach the Luff Extrusion from the furling Gear through the Grease Hole. The lower split pin and clevis pin (5) are removed. 4. Remove the furling gear from the mast by undoing the eight holding screws and taking it away from the mast. (The furling gear can be removed even when the mast is stepped). 5. Remove the headbox by undoing the nuts on top . The box can then be lifted off. Detach the Top Swivel from the head box. 6. The luff section and the Halyard Swivel can now be pulled out of the mast. 11

Fig. 13:1 









 12 Spare parts

b c d a e g h i k l

f j

Furling gear

Item Description Dimension Qty Mast extrusion F228 F246 F265 1 Gear house assembly - 1 540-090-01 540-090-01 540-090-01 2 Ratchet cover assembly - 1 540-392-01 540-392-01 540-392-01 3 Flange bush Ø23/10.5-28 2 540-388 - - 3 Flange bush Ø23/10.5-32 2 - 540-389 - 3 Flange bush Ø23/10.5-36 2 - - 540-390 4 Screw MC6S 10x30 2 153-059 - - 4 Screw MC6S 10x35 2 - 153-061 - 4 Screw MC6S 10x35 2 - - 153-061 5 Line driver cover 142x148 1 540-089 540-089 540-089 6 Pop rivet Ø6.4x12.7 4 167-004 167-004 167-004 7 Bearing house assy - 1 540-087-01 540-087-01 - 7 Bearing house assy - 1 - - 540-087-02 8 Screw MRT 6x8 4 155-624 155-624 155-624 9 Linedriver assembly Ø120x33 1 540-085-01 540-085-01 540-085-01 10 Stripper 58x20 1 540-034 540-034 540-034 11 Cover ø112x29 1 540-194 540-194 540-194 12 Screw MFT5x12 5 162-048 162-048 162-048

Sail feeder tube assembly

Item Description Dimension Qty Mast extrusion F228 F246 F265 13 Sail feeder tube 30/29-524 1 540-381 540-381 540-381 14 Joint sleeve L=192 1 540-167 540-167 540-167 15 Pop rivet 4.8x9.9 4 167-007 167-007 167-007 16 Sail feeder 32x12 1 540-344 540-344 540-344 13

28 26

29 25 22 18

17 27

30 13 23 16 20 19 21 14 24 15

Tack assembly

Item Description Dimension Qty Mast extrusion F228 F246 F265 17 Tack hook body 37x117 1 540-100 540-100 540-100 18 Tensioning screw M22x165 1 540-099 540-099 540-099 19 Torque connector 30x17 2 540-098 540-098 540-098 20 Retaining ring - 1 301-063 301-063 301-063 21 Screw MC6S 5x6 1 155-072 155-072 155-072 22 Wheel ø90/31-20 1 319-622 319-622 319-622 23 Split pin 3.7x40 1 301-062 301-062 301-062 24 Pop rivet 4.8x9.9 4 167-007 167-007 167-007 Shaft assembly

Item Description Dimension Qty Mast extrusion F228 F246 F265 25 Shaft Ø25x356 1 540-399 540-399 540-399 26 Gimbal joint Ø34/32-49 2 540-097 540-097 540-097 27 Clevis pin Ø10x40 2 165-211 165-211 165-211 28 Split pin 2.9x16 2 301-049 301-049 301-049 29 Clevis pin Ø10x40 1 165-211 165-211 165-211 30 Split pin 2.9x16 1 301-049 301-049 301-049 Luff extrusion

Item Description Dimension Qty Mast extrusion F228 F246 F265 31 Luff extrusion w. cover L=7500 1 540-111-01 540-111-01 540-111-01 32 Joining sleeve L=180 1 540-148 540-148 540-148 33 Pop rivet 4.8x9.9 8 167-007 167-007 167-007 14

b g d f

Halyard swivel

Item Description Dimension Qty Mast extrusion F228 F246 F265 Complete halyard swivel -> 540-158-01 540-158-01 540-158-01 1 Sliding sleeve 64x140 1 540-159 540-159 540-159 2 Sliding insert-stb 52x52 1 540-165 540-165 540-165 3 Sliding insert-port 52x52 1 540-166 540-166 540-166 4 Screw 3.5x9.5 1 171-047 171-047 171-047 5 Schackle M7/13/25 1 307-023 307-023 307-023 6 Pin ø10x37 1 166-222 166-222 166-222 7 Split pin 2.9x32 1 301-525 301-525 301-525

Top swivel

Item Description Dimension Qty Mast extrusion F228 F246 F265 Complete top swivel (pop rivets not included)-> 540-164-01 540-164-01 540-164-01 1 Pop rivet 4.8x16.5 4 167-006 167-006 167-006 15

1 2

3 4

Additional items

Item Description Dimension Qty Mast extrusion F228 F246 F265 1 Grease 100g 1 312-501 312-501 312-501 2 Access hole cover 57x126 1 540-026 540-026 540-026 3 Manual/Spare parts A4 1 595-065-S 595-065-S 595-065-S list-Swedish 3 Manual/Spare parts A4 1 595-065-E 595-065-E 595-065-E list-English 3 Manual/Spare parts A4 A4 595-065-T 595-065-T 595-065-T list-German 4 Endless line Ø10 2x5000 1 611-011-05 - - 4 Endless line Ø10 2x7000 1 - 611-011-06 - 4 Endless line Ø10 2x9000 1 - - 611-011-07 Dealer: www.seldenmast.com e-mail [email protected] Fax +33(0)251362185 Tel +33(0)251362110 Seldén MastSAS,FR e-mail [email protected] Fax +31(0)111-698 130 Tel +31(0)111-698 120 Seldén MidEurope B.V., NL e-mail [email protected] Fax +4539271700 Tel +4539184400 Seldén Mast A/S, DK e-mail [email protected] Fax +1843-760-1220 Tel +1843-760-6278 Seldén MastInc.,USA e-mail [email protected] Fax +44(0)1329504049 Tel +44(0)1329504000 Seldén MastLimited,UK e-mail [email protected] Fax +46(0)31297137 Tel +46(0)316900 Seldén Mast AB, Sweden DINGHIES

KEELBOATS spare and parts know-how. you sail, you sure can be of fast access to our service, coveringdealers world’s the marine markets. wherever So enabled us to build a network of over 750 authorised Seldén and Furlex. The worldwide success of hasFurlex and Mast Seldén inFrance. well Our known brands are pe B.V. in the Nether Denmark, Mast Seldén Ltd Mid Euro UK,Seldén inthe of Mast Seldén ABinSweden, Mast Seldén A/Sin for dinghies, keelboats and yachts. The Group consists of masts and systems rigging incarbon and aluminium Seldén TheGroup the is world’s leading manu lands, Mast Seldén Inc USA inthe YACHTS facturer facturer -

595-065-E Printed in Sweden